import java.util.Scanner;
import java.util.*;

public class MC0403判断奇偶 {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        // code here
        int n = input.nextInt();
        int num = 0;
        int num2 = 0;
        for (int i = 0; i < 2 * n; i++) {
            if (i < n) {
                num += input.nextInt();
            } else {
                num2 += input.nextInt();
            }
        }
        System.out.println(evenOrOdd(num * num2));
        input.close();
    }

    public static String evenOrOdd(int num1) {
        if (num1 == 0) {
            return "为0";
        }
        if (num1 % 2 == 0) {
            return "even";
        }
        return "odd";
    }
}
